Speckle propagation through atmospheric turbulence: Effects of a random phase screen at the source

O. Korotkova, L. C. Andrews, R. L. Phillips

Research output: Contribution to journalConference article

33 Scopus citations

Abstract

By using ABCD ray matrix theory and a random phase screen located near the source, analytic expression are developed for the mutual coherence function and scintillation index of a Gaussian-beam wave propagating through weak atmospheric turbulence in both the pupil plane and image plane of a receiving system. The phase screen model that we use is based on a previous double-pass analysis by the authors for analyzing speckle propagation from a rough target in a lidar system. In the present context, it serves as a model for a partially coherent Gaussian-beam wave that is currently used in laser communications. The effect of partial coherence (induced by a diffuser) on the scintillation index of the beam in the presence of weak atmospheric turbulence is investigated as a function of the correlation length of the diffuser and the propagation distance.

Original languageEnglish (US)
Pages (from-to)98-109
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4821
DOIs
StatePublished - Dec 1 2002
Externally publishedYes
EventFree-Space Laser Communication and Laser Imaging II - Seattle, WA, United States
Duration: Jul 9 2002Jul 11 2002

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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